Unscrew and remove the cap

2. Hold the device upright (fig.1)

Turn the red handle is both right and restore the original position to the left.

`Then i hear the distinctive sound clicks (Fig.2)

If you use the device for the first time then this move should be done 2 times.

3. Breathe deeply and loudly (fig.3). Never exhale into the device.

Screw the cap back on the device

fi.1, fig 2, fig3